/* ===================================
   内页通用样式 - subpage.css
   青岛青铜器科技有限公司 BROIT
   服务于：about / services / cases / team / culture / contact
   =================================== */

.section .eyebrow,
.intro-text .eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--brand-red);
    margin-bottom: 14px;
}

/* ============ 关于我们 ============ */
.about-overview {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 56px;
    align-items: center;
}

.about-overview-text h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.about-overview-text p {
    font-size: 16px;
    line-height: 2;
    color: var(--text-medium);
    margin-bottom: 18px;
}

.about-overview-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.overview-card {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.35s ease;
}

.overview-card:hover {
    background: var(--brand-black);
    transform: translateY(-6px);
}

.overview-card:hover strong,
.overview-card:hover span { color: #ffffff; }
.overview-card:hover strong i { color: var(--brand-gold); }

.overview-card strong {
    display: block;
    font-size: 42px;
    font-weight: 800;
    color: var(--brand-red);
    font-family: "Arial Black", Arial, sans-serif;
    line-height: 1;
    margin-bottom: 12px;
}

.overview-card strong i {
    font-size: 18px;
    font-style: normal;
    font-weight: 600;
    margin-left: 2px;
}

.overview-card span {
    font-size: 14.5px;
    color: var(--text-medium);
}

/* ============ 使命愿景 ============ */
.mission-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 26px;
}

.mission-item {
    text-align: center;
    padding: 40px 26px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    transition: all 0.35s ease;
}

.mission-item:hover {
    background: rgba(187, 27, 33, 0.12);
    border-color: rgba(187, 27, 33, 0.4);
    transform: translateY(-6px);
}

.mission-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-red), var(--brand-red-dark));
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 1px;
}

.mission-item h3 {
    font-size: 19px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 14px;
}

.mission-item p {
    font-size: 14.5px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.66);
}

/* ============ 行业积累 ============ */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.expertise-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 28px 32px;
    background: var(--bg-light);
    border-left: 4px solid var(--brand-red);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.expertise-item:hover {
    transform: translateX(6px);
    box-shadow: 0 8px 22px var(--shadow-light);
}

.expertise-item strong {
    font-size: 19px;
    font-weight: 700;
    color: var(--text-dark);
}

.expertise-item span {
    font-size: 22px;
    font-weight: 800;
    color: var(--brand-red);
    font-family: "Arial Black", Arial, sans-serif;
}

/* ============ 资质荣誉 ============ */
.honor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.honor-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 36px 20px;
    text-align: center;
    transition: all 0.35s ease;
}

.honor-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 14px 32px var(--shadow-medium);
    border-color: transparent;
}

.honor-mark {
    width: 76px;
    height: 76px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-black), #3a3a3a);
    color: var(--brand-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.honor-card p {
    font-size: 14.5px;
    line-height: 1.6;
    color: var(--text-medium);
}

/* ============ 内页 CTA ============ */
.subcta {
    background: linear-gradient(120deg, #1a1a1a 0%, #2a1416 60%, #951116 100%);
    padding: 64px 0;
    position: relative;
    overflow: hidden;
}

.subcta::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 50%, rgba(0,154,192,0.22), transparent 50%);
}

.subcta-inner {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
}

.subcta-inner h2 {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
}

.subcta-inner p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.76);
}

.subcta-btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ============ 业务领域详情 ============ */
.field-nav-section {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 74px;
    z-index: 90;
}

.field-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    padding: 16px 0;
}

.field-nav a {
    font-size: 14.5px;
    font-weight: 500;
    color: var(--text-medium);
    padding: 8px 18px;
    border-radius: 22px;
    transition: all 0.3s ease;
}

.field-nav a:hover {
    background: var(--brand-red);
    color: #ffffff;
}

.field-detail { scroll-margin-top: 130px; }

.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.field-row.reverse .field-media { order: 2; }
.field-row.reverse .field-info { order: 1; }

.field-media img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 16px 44px rgba(0, 0, 0, 0.18);
    display: block;
}

/* 真实截图可点击放大 */
.field-media[data-lightbox] {
    position: relative;
    cursor: zoom-in;
    border-radius: 12px;
    overflow: hidden;
}

.field-media[data-lightbox]::after {
    content: '点击查看大图';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    padding: 12px 16px;
    font-size: 13px;
    letter-spacing: 1px;
    color: #ffffff;
    text-align: center;
    background: linear-gradient(0deg, rgba(0,0,0,0.55), transparent);
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.field-media[data-lightbox]:hover::after {
    opacity: 1;
    transform: translateY(0);
}

.gradient-media {
    height: 340px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 16px 44px rgba(0, 0, 0, 0.18);
    position: relative;
    overflow: hidden;
}

.gradient-media span {
    position: relative;
    z-index: 2;
    color: #ffffff;
    font-size: 30px;
    font-weight: 800;
    text-align: center;
    line-height: 1.4;
    letter-spacing: 2px;
    text-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.gradient-media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 70% 30%, rgba(255,255,255,0.16), transparent 50%);
}

.meter-grad { background: linear-gradient(135deg, #0a2a4a 0%, #009ac0 100%); }
.industry-grad { background: linear-gradient(135deg, #1a1a1a 0%, #951116 100%); }

.field-no {
    display: inline-block;
    font-size: 46px;
    font-weight: 800;
    font-family: "Arial Black", Arial, sans-serif;
    color: var(--brand-red);
    opacity: 0.18;
    line-height: 1;
    margin-bottom: 6px;
}

.field-info h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 18px;
}

.field-lead {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-medium);
    margin-bottom: 22px;
}

.field-list {
    list-style: none;
    margin-bottom: 22px;
}

.field-list li {
    position: relative;
    padding-left: 22px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-medium);
    margin-bottom: 14px;
}

.field-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 11px;
    width: 8px;
    height: 8px;
    border-radius: 2px;
    background: linear-gradient(135deg, var(--brand-red), var(--brand-gold));
}

.field-list li strong {
    color: var(--text-dark);
    font-weight: 700;
}

.field-tag {
    display: inline-block;
    font-size: 14px;
    color: var(--brand-red);
    background: rgba(187, 27, 33, 0.08);
    padding: 8px 18px;
    border-radius: 6px;
    font-weight: 500;
}

/* ============ 响应式 ============ */
@media (max-width: 992px) {
    .about-overview { grid-template-columns: 1fr; gap: 40px; }
    .mission-grid { grid-template-columns: repeat(2, 1fr); }
    .expertise-grid { grid-template-columns: repeat(2, 1fr); }
    .honor-grid { grid-template-columns: repeat(3, 1fr); }
    .field-nav-section { position: static; }
    .field-row { grid-template-columns: 1fr; gap: 36px; }
    .field-row.reverse .field-media { order: 1; }
    .field-row.reverse .field-info { order: 2; }
}

@media (max-width: 768px) {
    .about-overview-cards { grid-template-columns: 1fr 1fr; }
    .mission-grid { grid-template-columns: 1fr; }
    .expertise-grid { grid-template-columns: 1fr; }
    .honor-grid { grid-template-columns: repeat(2, 1fr); }
    .subcta-inner { flex-direction: column; text-align: center; }
    .subcta-btns { justify-content: center; }
    .about-overview-text h2 { font-size: 26px; }
    .field-info h2 { font-size: 26px; }
    .gradient-media { height: 240px; }
    .gradient-media span { font-size: 24px; }
}